I found the problem and i publish here, maybe someone will have the same problem in IE versions...
In the <head>
i had invalid meta tags which blocked several scripts and css3 styles in IE versions (except IE9), for example :
<meta content='fr-FR' http-equiv='Content-Language'/>
<meta content='IE=EmulateIE7' http-equiv='X-UA-Compatible'/>
You can check it iby W3.org validator : http://validator.w3.org/
Good chance !